單項(xiàng)選擇題

During the dock repair, each sea valve must be disassembled, cleaned and ground well.Before it reassemble the sealing surface between the valve and the valve seat should be checked by （）

A.chief engineer
B.surveyor
C.the engineer
D.the technique personnel of the shipyard

你可能感興趣的試題

單項(xiàng)選擇題

During the dock repair, when installing the tail shaft and propeller, who should be on the spot to supervise?（）

A.chief engineer
B.the engineer
C.captain
D.any member of the engine department

單項(xiàng)選擇題

When the vessel entering the dock, the first work that engineer should contact with the shipyard （）

A.releasing the boiler water
B.the explosion detecting and cleaning for the fuel tank
C.the docking project related item
D.shore power and fire fighting water supply

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During the dock repair, each sea valve must be disassembled, cleaned and ground well.Before it reassemble the sealing surface between the valve and the valve seat should be checked by （）

你可能感興趣的試題

During the dock repair, when installing the tail shaft and propeller, who should be on the spot to supervise?（）

When the vessel entering the dock, the first work that engineer should contact with the shipyard （）

99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精